You need to know the least common denominator (LCD) of 27 and 8 if you want to add or subtract two fractions with 27 and 8 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 27 and 8 is 216.
Here is a math problem example where you need to know the LCD of 27 and 8 to solve:
3/27 + 2/8 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
216/27 = 8
216/8 = 27
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 8 = 24
2 x 27 = 54
Step 3) Put it all together to solve the problem:
24/216 + 54/216 = 78/216
= 3/27 + 2/8 = 78/216
It's that easy! Once again, the lowest common denominator (LCD) of 27 and 8 is as follows:
216
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.